Question: Question 2 The time for an elder machine to do a quality check on a newly manufactured tire. X1, has mean of 65 seconds and

Question 2 The time for an elder machine to do a quality check on a newly manufactured tire. X1, has mean of 65 seconds and variance 15, while the time for a newer mcdel. X2: has mean 45 seconds and variance 9. Find the expected time savings using the newer model when a) checking a single tire; h) checking EDD tires. c) Find the standard deviation in parts a) and h), assuming all the checking times are independent

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